C. H. PremChand

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A modified decision based unsymmetrical trimmed median filter algorithm for the restoration of gray scale, and color images that are highly corrupted by salt and pepper noise is proposed in this paper. The proposed algorithm replaces the noisy pixel by trimmed median value when other pixel values, 0's and 255's are present in the selected window and when(More)
Detection of Optic disc (OD) in a fundus image is a foremost important step in the process of screening the diabetic retinopathy[1,2,3]. Hard Exudates detection algorithms usually find lot of false positives since the intensity and color distribution of OD will much resemble that of a Hard Exudates region[4,5]. So, most of the Exudates detection algorithms(More)
Improved decision based unsymmetric trimmed median ?lter is one of the valuable methods that are capable to restore of gray scale images which have been enormously corrupted by Salt-and-Pepper noise. An Improved decision based unsymmetric trimmed median ?lter is proposed to enhance decision based unsymmetric trimmed median ?lter in term of its noise(More)
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